CN2155825Y

CN2155825Y - Knee joint

Info

Publication number: CN2155825Y
Application number: CN 93206052
Authority: CN
Inventors: 陈森荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-17
Filing date: 1993-03-17
Publication date: 1994-02-16
Anticipated expiration: 2003-03-17

Abstract

The utility model relates to a knee joint. The utility model comprises a shank support rod device for connecting a heel knee, a limb palm and an artificial limb, a buffering device, a knee joint device for connecting a thigh and a knee, and a fastening device, wherein, one side of the shank support rod device corresponding to the knee joint device is respectively connected with the buffering device, and the other side is the other pivoted with the fastening device. Both sides of a rotation shaft of the fastening device are provided with bearings. When the fastening device is slackened, the bearings limit the swing of the rotation shaft, and the disabled is safe in use.

Description

Knee joint

This utility model relates to a kind of knee joint, particularly relates to a kind ofly using for crippled's artifucial limb, and its walking is difficult for lax knee joint of rocking when using.

Be the epoch of scientific and technological progress prosperity at present, with present medical skill, it is not only required on the therapeutic effect and keeps on improving, it requires many tool property benefited especially in the auxiliary rehabilitation work after the treatment, wherein, develop especially rapidly as auxiliary rehabilitation device with artifucial limb, it is to keep outside the valuable life injured, another kind of auxiliaring effect is provided again, for example, for the crippled who lacks lower limb, very sad aspect body and mind, and under double blow also very inconvenient aspect the walking, can not only increase the convenience of its action by the installing artifucial limb, it is beautiful and make the people wear convenient (general market sell trousers be all a pair trouser legs) to improve people's overall appearance again a little, therefore adopted foot has become a very important body and mind aid, and the lower limb artifucial limb can be divided into many positions, for example the artifucial limb knee joint partly is to use and accepts the thigh knee up, ankle is accepted in the below, sole artifucial limb part, yet construct with regard to artifucial limb, its knee joint position is concerning the motility of adopted foot, in the use of artifucial limb, occupy considerable status, and the structure of safety knee in the past, see also shown in Figure 1ly, it includes leg fulcrum bar equipment 5, buffer unit 6, knee joint equipment 7, and Fastening device 8; Wherein a corresponding side of leg fulcrum bar equipment 5 and knee joint equipment 7 is connected with buffer unit 6 respectively, and opposite side is hubbed at Fastening device 8 respectively; So by the knee joint structure that above-mentioned member made up, mat buffer unit 6 when knee carries out bending operation and can reach bending effect, and 8 pairs of leg fulcrum bar equipments of mat Fastening device are done unidirectional slippage and are produced the blocking effect of packing, safety is provided when providing one to use, the knee joint of more realistic requirement, see also shown in Figure 2 about Fastening device 8, it is provided with body 80, packing cover 81 and rotating shaft 82, packing cover 81 places in the perforation 83 of

body

80, and 82 of rotating shafts place in the packing cover 81, can overlap 81 packing fixed rotating shafts by packing, and rotating shaft 82 is articulated on the leg fulcrum bar equipment 5, so, can make leg fulcrum bar equipment 5 have crooked effect by Fastening device 8.

Knee joint artifucial limb part in the past, it has following shortcoming, i.e. knee joint artifucial limb part in the past, it is in order to make the knee joint artifucial limb in the use more near people's knee joint, have when straight and upright the effect that supports personal human body weight, a bending effect is provided again, and can convenient crippled's walking; And the what is called of general nature foot " walking " is that the forward foot in a step is raised bending and (this moment the rear foot be to be supported weight) forward, becomes straight configuration again, and then, the rear foot buckles by stretching, raises forward again and stretch (usefulness that former forward foot in a step this moment becomes supported weight); But take a broad view of knee joint structure in the past, after using a period of time, the packing cover of packing rotating shaft will produce lax, rotating shaft is produced rocks, thereby the leg fulcrum bar equipment 5 that is articulated in rotating shaft 8 will rock, and the crippled is very easy to thereby will pounce on volt forward and fall, and accident meets accident.

Main purpose of the present utility model is to be to provide a kind of knee joint, and it has the unlikely effect of rocking of the rotating shaft of making, and goes up safer purpose to reach actual use.

For reaching above-mentioned purpose, knee joint of the present utility model, it includes leg fulcrum bar equipment, it is hollow form, its top is provided with the hinge portion, and relevant place is provided with perforation and symmetric dragging track in the hinge portion, and the bottom of leg fulcrum bar equipment is in order to connect ankle, sole justice foot; Buffer unit, it includes returning spring and the knee joint axostylus axostyle that is positioned at leg fulcrum bar equipment, and knee joint axostylus axostyle one side is connected on the returning spring; Knee joint equipment, its apical margin is in order to connect thigh, and its root edge one side is provided with the bending bar, so that articulate mutually with knee joint axostylus axostyle opposite side mat one hinged arm of buffer unit, its relative opposite side is provided with pivoted hole; Fastening device, the hinge portion perforation of the corresponding above-mentioned leg fulcrum bar equipment of one side also is provided with a perforation, and the perforation of leg fulcrum bar equipment hinge portion articulates mutually with the wearing of perforation mat axostylus axostyle of tight device, Fastening device packing one rotating shaft, corresponding dragging track of this rotating shaft and convex with and slide projection, slide projection and can on dragging track, do unidirectional slip, and the pivoted hole of the corresponding knee joint equipment of the opposite side of Fastening device and be provided with perforation, it can articulate mutually by hinged arm; The rotating shaft both sides that it is characterized in that Fastening device are provided with bearing, and described rotating shaft is located in this bearing, can prevent that rotating shaft from rocking, to reach the application target of safety.

Advantage of the present utility model mainly be can prevent Fastening device rotating shaft owing to lax generation of packing cover rocked, cause the crippled to fall easily, thereby reach in the use purpose of safety more.

Below by most preferred embodiment and accompanying drawing knee joint of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the exploded view of knee joint structure in the past.

Fig. 2 is the exploded view of the Fastening device of knee joint structure in the past.

Fig. 3 is the exploded view in this utility model joint.

Fig. 4 is the kneed combination sketch map of this utility model.

At first, see also shown in Fig. 3,4, this utility model knee joint comprises leg fulcrum bar equipment 10; Buffer unit 20; Knee joint equipment 30; Fastening device 40.

Leg fulcrum bar equipment 10 is the hollow form bodys that are suitable length, its top convexes with articulated section 11, its shape that takes the shape of the letter U, be provided with symmetric perforation 111 in its longitudinal part, and 111 be provided with dragging track 12 in perforation, and forming a side is flange 121, opposite side is recessed edge 122, and leg fulcrum bar equipment 10 can be used as the usefulness of shank support, and its bottom side edge can be in order to artifucial limb parts such as connecting pin ankle, soles.

Buffer unit 20, it is installed in the leg fulcrum bar equipment 10, and it includes buffer gear and knee joint axostylus axostyle 22, and buffer gear is a returning spring, or by cylinder body, two compression pistons, piston component that fixedly axle collar, axostylus axostyle etc. constituted up and down; Buffer gear with generally constructed in the past identical, so be not shown on the figure; Knee joint axostylus axostyle 22 1 sides connect buffer gear, with the interlock slippage.

The top edge of knee joint equipment 30 is in order to connect thigh, and the corresponding knee joint axostylus axostyle 22 of a lateral margin of its bottom and convex with bending bar 31, and which is provided with bending hole 311, opposite side by hinged arm 50 with knee joint axostylus axostyle 22 articulates mutually, and the opposite side of the corresponding bending bar 31 in bottom is provided with the articulated section 32 that is the U type, which is provided with the pivoted hole 321 of symmetric tool bearing.

The perforation 111 of the hinge portion 11 of the corresponding leg fulcrum bar equipment 10 of Fastening device 40 one sides and be provided with perforation 41, be provided with packing cover 43 in the

perforation

41,43 packing rotating shafts 44 of packing cover, rotating shaft 44 both sides all are provided with bearing 45, can prevent that rotating shaft 44 from rocking, and it is corresponding and cooperate dragging track 12 and convex with a symmetric projection 42 that slides, and run through perforation 111 by

axostylus axostyle

51,41 articulate mutually, and make and slide that projection 42 is slipped into by the recessed edge 122 of dragging track 12 and on dragging track 12 and be subjected to flange 121 restrictions and do unidirectional slip, and the pivoted hole 321 of the articulated section 32 of the corresponding knee joint equipment 30 of the opposite side of Fastening device 40 and be provided with a perforation 433, it articulates mutually by hinged arm 52.

The combination of above-mentioned structure, be to articulate mutually by hinged arm 50 runs through the bending hole 311 of bending bar 31 of knee joint equipment 30 and the differing from the opposite side that connects buffer unit 20 of knee joint axostylus axostyle 22, again Fastening device 40 is slipped into by recessed edge 122 in the dragging track 12 of leg fulcrum bar equipment 10 to slide projection 42 correspondences, and by axostylus axostyle 51 run through the

perforation

111,41 and Fastening device 40 1 sides and leg fulcrum bar equipment 10 are articulated, and Fastening device 30 opposite side tools are bored a hole that 433 ora terminalis embed and in the articulated section 32 of corresponding knee joint equipment 30, and mat one hinged arm 52 runs through perforation 433,321 and the opposite side of Fastening device 30 and knee joint equipment 30 are articulated, promptly finish assembling.

Knee joint unitary construction after the combination, please cooperate consult shown in Figure 4, knee joint equipment 30 is positioned at the place ahead with articulated section 32 and Fastening device 40 part that is articulated, and knee joint equipment 30 is positioned at the rear with bending bar 31 and knee joint axostylus axostyle 22 part that is articulated, so, when carrying out the knee bend operation, knee joint equipment 30 has articulated section 32 ora terminalis and rearward is shifted, in the time of after then Fastening device 40 is pulled to by knee joint equipment 30 with knee joint equipment 30 places of being articulated, make and slide projection 42 packing axostylus axostyle 51 gradually, on the other hand, 22 of knee joint axostylus axostyles are slowly depressed (this moment knee joint axostylus axostyle 22 can do downslide leg fulcrum bar equipment 10 in move) downwards by knee joint equipment 30.

By above tectonic association, this utility model knee joint, after it uses a period of time, the packing of Fastening device 40 cover 43 is packed in the strength of rotating shaft 44 when lax, rotating shaft 44 can be limited by the bearing 45 of its both sides, and does not have the phenomenon of rocking, and makes the crippled in use, the leg fulcrum bar equipment 10 that is articulated in Fastening device 40 bottoms can not rock, and makes the crippled safer in the use.

In sum, the kneed design of this utility model really can reach the application target of its expection, does not have a unpractical shortcoming such as safety and solve on reality is used in the past, and a kind of knee joint that has security function of using for disabled consumer is provided.

Claims

1, a kind of knee joint comprises:

Leg fulcrum bar equipment, it is hollow form, and its top is provided with the hinge portion, and the hinge portion is provided with perforation and symmetric dragging track;

Buffer unit, it comprises returning spring and the knee joint axostylus axostyle that is positioned at leg fulcrum bar equipment, a side of knee joint axostylus axostyle is connected on the returning spring;

Knee joint equipment, its root edge one side is provided with the bending bar, the knee joint axostylus axostyle opposite side of bending bar and buffer unit articulates mutually by hinged arm, and its relative opposite side is provided with pivoted hole, knee joint equipment also includes Fastening device, the perforation of the corresponding leg fulcrum bar equipment of one side of Fastening device hinge portion also is provided with perforation, and the perforation of leg fulcrum bar equipment hinge portion and the perforation of Fastening device articulate mutually by wearing of axostylus axostyle, be provided with the packing cover in the perforation of Fastening device, packing cover packing one rotating shaft, the corresponding dragging track of this rotating shaft convexes with the projection that slides of doing unidirectional slip on this dragging track, the pivoted hole of the corresponding knee joint equipment of the opposite side of Fastening device is provided with perforation, it articulates mutually by hinged arm, it is characterized in that: the perforation both sides of Fastening device are provided with bearing, and described rotating shaft is located in this bearing.